Much of the D.C. jazz scene gave over the summer to celebrating tenor saxophonist Wayne Shorter, the music’s greatest living composer and, arguably, bandleader. (Shorter turned 80 in August.) Fitting, then, that the capstone should be an appearance by the man himself. It’s a low-level affair, of course: Shorter and his acclaimed quartet are fronting the NSO Pops, with guest conductor (and jazz big-band leader) Vince Mendoza and a program that features his National Symphony Orchestra-commissioned composition “Gaia.” Oh, and a special appearance by some young musician named Esperanza Spalding. You know, nothing spectacular.